SCHAUMBURG, Ill.--(BUSINESS WIRE)--APP Pharmaceuticals, Inc., a wholly owned subsidiary of Fresenius Kabi Pharmaceuticals Holding, Inc. (NASDAQ: APCVZ), announced today that it has received approval from the U.S. Food and Drug Administration (FDA) to market penicillin G potassium for Injection, USP, in two dosage strengths. Penicillin G is therapeutically equivalent to the reference drug PfizerPen™ G, which is marketed by the innovator Pfizer, Inc.